diff options
Diffstat (limited to 'arch/mips/math-emu/sp_modf.c')
-rw-r--r-- | arch/mips/math-emu/sp_modf.c | 79 |
1 files changed, 0 insertions, 79 deletions
diff --git a/arch/mips/math-emu/sp_modf.c b/arch/mips/math-emu/sp_modf.c deleted file mode 100644 index 25a0fbaa0556..000000000000 --- a/arch/mips/math-emu/sp_modf.c +++ /dev/null @@ -1,79 +0,0 @@ -/* IEEE754 floating point arithmetic - * single precision - */ -/* - * MIPS floating point support - * Copyright (C) 1994-2000 Algorithmics Ltd. - * - * ######################################################################## - * - * This program is free software; you can distribute it and/or modify it - * under the terms of the GNU General Public License (Version 2) as - * published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. - * - * ######################################################################## - */ - - -#include "ieee754sp.h" - -/* modf function is always exact for a finite number -*/ -ieee754sp ieee754sp_modf(ieee754sp x, ieee754sp *ip) -{ - COMPXSP; - - CLEARCX; - - EXPLODEXSP; - - switch (xc) { - case IEEE754_CLASS_SNAN: - case IEEE754_CLASS_QNAN: - case IEEE754_CLASS_INF: - case IEEE754_CLASS_ZERO: - *ip = x; - return x; - case IEEE754_CLASS_DNORM: - /* far to small */ - *ip = ieee754sp_zero(xs); - return x; - case IEEE754_CLASS_NORM: - break; - } - if (xe < 0) { - *ip = ieee754sp_zero(xs); - return x; - } - if (xe >= SP_MBITS) { - *ip = x; - return ieee754sp_zero(xs); - } - /* generate ipart mantissa by clearing bottom bits - */ - *ip = buildsp(xs, xe + SP_EBIAS, - ((xm >> (SP_MBITS - xe)) << (SP_MBITS - xe)) & - ~SP_HIDDEN_BIT); - - /* generate fpart mantissa by clearing top bits - * and normalizing (must be able to normalize) - */ - xm = (xm << (32 - (SP_MBITS - xe))) >> (32 - (SP_MBITS - xe)); - if (xm == 0) - return ieee754sp_zero(xs); - - while ((xm >> SP_MBITS) == 0) { - xm <<= 1; - xe--; - } - return buildsp(xs, xe + SP_EBIAS, xm & ~SP_HIDDEN_BIT); -} |